Goretta Lee & Bison
Author: Donna Kay Kakonge
Publisher: Lulu.com
Published: 2018-10-09
Total Pages: 134
ISBN-13: 0359144144
DOWNLOAD EBOOKTwo short stories about multiculturalism in Canada. 33333333.
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Bison
Author: Donna Kay Kakonge
Publisher: Lulu.com
Published: 2019-01-27
Total Pages: 214
ISBN-13: 0359388981
DOWNLOAD EBOOKA tale of a Canadian-Ugandan family who has their challenges but is thriving in their new homeland is the basis of these stories, plus stories of cats named Harvey in alleyways, and a black and Korean couple who are also making a life for themselves in Canada, a place that was always their home.
Applications of Superconductivity
Author: H. Weinstock
Publisher: Springer Science & Business Media
Published: 2013-03-09
Total Pages: 695
ISBN-13: 9401707529
DOWNLOAD EBOOKThis book, in essence the proceedings of a NATO Advanced Study Institute with the same title, is designed to provide in-depth coverage of many, but not all, of the major current applications of superconductivity, and of many that still are being developed. It will be of value to scientists and engineers who have interests in the research and production aspects of the technology, as well as in the applications themselves. The ftrst three chapters (by Clarke, Vrba and Wikswo) are devoted to an understanding of the principles, fabrication and uses of SQUID magnetometers and gradiometers, with the greatest emphasis on biomagnetism and nondestructive evaluation (NDE). For the most part, traditional low-temperature superconductor (LTS) SQUIDs are used, but particularly for NDE, high-temperature superconductor (HTS) SQUIDs are proving useful and often more convenient. The succeeding three chapters (by Przybysz, Likharev and Chaloupka) cover broader aspects of superconducting electronics. The ftrst two of these deal primarily with digital L TS circuits, while the third discusses in great detail passive component applications using HTS materials. Currently, HTS ftlters are undergoing intense J3-site testing at cellular telephone base stations. While it is clear that HTS ftlters outperform conventional ftlters in reducing signal loss and allowing for more channels in a given bandwidth, it isn't yet certain that the cellular telephone industry sees sufficient economic beneftts to make a ftrm decision to use HTS ftlters universally in its systems. If this application is generally adapted, the market for these ftlters should be quite large.
The Cinematic City
Author: David Clarke
Publisher: Routledge
Published: 2005-08-19
Total Pages: 264
ISBN-13: 1134797974
DOWNLOAD EBOOK3llustrated throughout with movie stills, a diverse selection of films, genres, cities and historical periods are examined by leading names in the field to offer an innovative insight into the interconnection of city and screenscapes.
Compound-specific Stable Isotope Analysis
Author: Maik A Jochmann
Publisher: Royal Society of Chemistry
Published: 2015-11-09
Total Pages: 306
ISBN-13: 1782626107
DOWNLOAD EBOOKThe use of Compound-specific Stable Isotope Analysis (CSIA) is increasing in many areas of science and technology for source allocation, authentication, and characterization of transformation reactions. Until now, there have been no textbooks available for students with an analytical chemical background or basic introductory books emphasising the instrumentation and theory. This book is the first to focus solely on stable isotope analysis of individual compounds in sometimes complex mixtures. It acts as both a lecture companion for students and a consultant for advanced scientists in fields including forensic and environmental science. The book starts with a brief history of the field before going on to explain stable isotopes from scratch. The different ways to express isotope abundances are introduced together with isotope effects and isotopic fractionation. A detailed account of the required technical equipment and general procedures for CSIA is provided. This includes sections on derivatization and the use of microextraction techniques in GC-IRMS. The very important topic of referencing and calibration in CSIA is clearly described. This differs from approaches used in quantitative analysis and is often difficult for the newcomer to comprehend. Examples of successful applications of CSIA in food authenticity, forensics, archaeology, doping control, environmental science, and extraterrestrial materials are included. Applications in isotope data treatment and presentation are also discussed and emphasis is placed on the general conclusions that can be drawn from the uses of CSIA. Further instrumental developments in the field are highlighted and selected experiments are introduced that may act as a basis for a short practical course at graduate level.
Chemistry And Biology Of Ellagitannins: An Underestimated Class Of Bioactive Plant Polyphenols
Author: Stephane Quideau
Publisher: World Scientific
Published: 2009-01-05
Total Pages: 395
ISBN-13: 9814471445
DOWNLOAD EBOOKThis book is the first of its kind that focuses on the chemistry and biology of ellagitannins, a special class of naturally occurring polyphenols which have so far not received the attention they deserve. These polyphenolic substances are found in many plants, including numerous food sources. They not only exhibit unique structural features that fascinate most chemists who are aware of their existence, but also express remarkable biological activities that have yet to attract the interest of the pharmaceutical industry. This is surprising because ellagitannins have been identified as active principles in traditional Chinese medicines.The principal aim of this book is to set the record straight. Most, if not all, worldwide experts in each aspect of the chemistry and biology of this underestimated class of natural products have contributed to this book. It covers topics such as their structural determination and natural occurrence; the most up-to-date knowledge of their biosynthesis; the current state of the art of their total chemical synthesis; their main physicochemical properties and principal biological activities; their presence in food and beverages; and their related health effects. All together, nine chapters compose this book whose content is placed into historical perspective in a yet inspiring preface written by one of the pioneers in modern polyphenol research, Professor Edwin Haslam. This book will be useful not only to scientists involved in natural product research, but also to lecturers and their students as a source of key references and/or a textbook.
Biological Activity of Natural Products
Author: Jaroslava Švarc-Gajić
Publisher: Nova Science Publishers
Published: 2013
Total Pages: 0
ISBN-13: 9781628089264
DOWNLOAD EBOOKMany thousands of years ago, humans were introduced to the toxicants of minerals and plants of microbial origin, and since that time, natural bioactive compounds have been used in traditional medicine for treating different health conditions, but also as aphrodisiacs and as a means of suicide or murder. Modern medicine acknowledges natural bioactive compounds as valuable medicinal sources for both diagnostic and curative purposes. Natural compounds serve as templates for the production of new drugs with improved pharmacological properties. This book explains the term bioactivity and deals with the bioactive compounds of plants, animals, microbial and marine origin. Their use by traditional medicinal approach, as well as by modern medicine is further elaborated. Both beneficial and toxic properties of different chemical classes, including alkaloids, peptides, terpenoids, bioactive amines etc., are described. Their isolation at the industrial scale is presented through several technological processes which are explained in detail for several compound classes. The research explains how natural sources can be exploited my modern and traditional medicine, and presents the risks and benefits associated with their use. In addition, a new approach to studying bioactivity, that includes computational modelling and softwares for in silico description and prediction, is explained. A chemometric approach to studying bioactivity is demonstrated through several models given for some natural bioactive compounds and their derivatives.
Natural Products in Clinical Trials
Author: Atta-ur- Rahman
Publisher: Bentham Science Publishers
Published: 2018-03-03
Total Pages: 253
ISBN-13: 1681082136
DOWNLOAD EBOOKNatural products continue to play a key role in drug development. A recent analysis of the drug market in the developed world revealed that 40% of total clinically approved drugs were either unmodified natural products or their semi-synthetic derivatives. This book series focuses on reviews of exciting new bioactive natural products that have huge potential as drugs. It highlights the everlasting importance of natural products in our lives. Each volume brings reviews contributed by eminent scientists in the field. The first volume covers the following topics: - bioactive compounds from marine invertebrates - natural product derived drugs for immunological and inflammatory diseases - clinical trials of curcumin, camptothecin, astaxanthin, and biochanin - antibacterial and antifungal drugs from natural sources - natural products as anti-HIV medicines.
Chinese Materia Medica Chemistry, Pharmacology and Applications
Author: Zhu
Publisher:
Published:
Total Pages:
ISBN-13: 9789057022869
DOWNLOAD EBOOKWHO Guidelines on Good Agricultural and Collection Practices [GACP] for Medicinal Plants
Author: World Health Organization
Publisher: World Health Organization
Published: 2003-12-16
Total Pages: 81
ISBN-13: 9241546271
DOWNLOAD EBOOKMedicinal plant materials are supplied through collection from wild populations and cultivation. Under the overall context of quality assurance and control of herbal medicines WHO developed the Guidelines on good agricultural and collection practices (GACP) for medicinal plants providing general technical guidance on obtaining medicinal plant materials of good quality for the sustainable production of herbal products classified as medicines. These guidelines are also related to WHO's work on the protection of medicinal plants aiming promotion of sustainable use and cultivation of medicinal plants. The main objectives of these guidelines are to: (1) contribute to the quality assurance of medicinal plant materials used as the source for herbal medicines to improve the quality safety and efficacy of finished herbal products; (2) guide the formulation of national and/or regional GACP guidelines and GACP monographs for medicinal plants and related standard operating procedures; and (3) encourage and support the sustainable cultivation and collection of medicinal plants of good quality in ways that respect and support the conservation of medicinal plants and the environment in general. These guidelines concern the cultivation and collection of medicinal plants and include certain post-harvest operations. Good agricultural and collection practices for medicinal plants are the first step in quality assurance on which the safety and efficacy of herbal medicinal products directly depend. These practices also play an important role in protection natural resources of medicinal plants for sustainable use.
